80431056 has 120 divisors (see below), whose sum is σ = 236693184. Its totient is φ = 26438400.

The previous prime is 80430997. The next prime is 80431061. The reversal of 80431056 is 65013408.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 532581 + ... + 532731.

Almost surely, 2^80431056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80431056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118346592).

80431056 is an abundant number, since it is smaller than the sum of its proper divisors (156262128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80431056 is a wasteful number, since it uses less digits than its factorization.

80431056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 80431056 is about 8968.3363005632. The cubic root of 80431056 is about 431.6594538398.

The spelling of 80431056 in words is "eighty million, four hundred thirty-one thousand, fifty-six".